Comments:

Aleen

Her answers are well-written and reader-friendly. She provides accurate and informative answers. However, for question 4ii) and 5i), the question is asking for the ionic equations, but both her answers are in chemical equations.

Yihui

Her answers are short and straightfoward. For question 1, zinc hydroxide , ZnOH should be Zn(OH)2. For question 5, it would be better in she includes "add until there is excess solid" so that it's able to filtrate.

ChunBoon

His answers are excellent. I would prefer him putting Zn2+ instead of Zn(+). To make his life more easier, he can write on a piece of paper and post it. And also, he made a slight mistake in question 1 iv), it should be Zn2+ instead of Zn(+). For question 3iii), it is supposed to be Iron (II) ion instead of Iron (III) ion which gives the green soluion.

Overall, everyone's answers are great. I can see them putting in effort in providing quality answers ^o^